An ecological partition of the Atlantic Ocean and its adjacent seas

Beaugrand, Gregory; M, Edwards; Helaouet, P.

Document type :

Article dans une revue scientifique

DOI :

10.1016/j.pocean.2019.02.014

Title :

An ecological partition of the Atlantic Ocean and its adjacent seas

Author(s) :

Beaugrand, Gregory [Auteur]
Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 [LOG]
M, Edwards [Auteur]
Helaouet, P. [Auteur]

Journal title :

Progress in Oceanography

Publisher :

Elsevier

Publication date :

2019-04

ISSN :

0079-6611

HAL domain(s) :

Planète et Univers [physics]/Sciences de la Terre/Océanographie

English abstract : [en]

In the past, partitions of the global ocean have been commonly carried out using relatively few environmental or biological variables. Although such partitions are undoubtedly useful on a global scale, we show that, at a ...
Show more >In the past, partitions of the global ocean have been commonly carried out using relatively few environmental or biological variables. Although such partitions are undoubtedly useful on a global scale, we show that, at a basin scale, the use of a large number of biological variables greatly improves the accuracy of a partition. We first determined pelagic habitats using a set of selected environmental variables such as temperature, bathymetry, light at the seabed, sea ice concentration, current velocity and salinity. We then partitioned the North Atlantic Ocean and its adjacent seas at spatial resolutions of 2° latitude × 2° longitude and 0.5° × 0.5° using biological data from the Continuous Plankton Recorder (CPR survey). We used a total of 238 plankton species or taxa sampled between 1946 and 2015 representing more than 60 million data points. Finally, we combined the three biogeographies together to propose a new ecological partition of the North Atlantic and its adjacent seas into Ecological Units (EUs) and ecoregions. The comparison of our partition with the biogeochemical biogeography proposed by Longhurst reveals substantial differences in the location and size of biomes and provinces, especially over the continental shelf. In particular, boundaries of three known biomes (i.e. westerlies, polar and continental shelves biomes) differ substantially from the global-scale classifications.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Collections :

Laboratoire d'Océanologie et de Géosciences (LOG) - UMR 8187

Source :

Harvested from HAL

Files

https://hal.archives-ouvertes.fr/hal-02374275/document
Open access
Access the document

https://hal.archives-ouvertes.fr/hal-02374275/document
Open access
Access the document

https://hal.archives-ouvertes.fr/hal-02374275/document
Open access
Access the document

document
Open access
Access the document

S0079661118302027.pdf
Open access
Access the document

An ecological partition of the Atlantic ... BibTeX CSV Excel RIS

Files

An ecological partition of the Atlantic ...

BibTeX

CSV

Excel

RIS